Mr. Mattes has served as our Chief Executive Officer and President as well as a member of the Board since his appointment on April 6, 2020. Prior to joining Coherent and beginning in June 2019, he was a Senior Advisor to McKinsey & Company, a leading global management consulting firm, providing corporate and strategic consulting services to various clients of the firm. From January 2018 to May 2019, he was an independent corporate advisor. From 2013 to December 2017, he was the Chief Executive Officer and a member of the board of directors of Diebold Nixdorf Incorporated, a retail and financial services technology systems company. He also served as its President from 2013 to August 2016. Mr. Mattes was the Senior Vice President, Global Strategic Partnerships at Violin Memory, a computer storage systems company, in 2013. He has also held various senior management positions with Hewlett-Packard Co., a computer technologies company. From 2008 to 2011 he was the Senior Vice President and General Manager of Hewlett Packard’s Enterprise Services for the Americas. From 2006 to 2008 he was Hewlett Packard’s Chief Sales Officer for the Enterprise Business. Mr. Mattes spent the first 20 years of his career (between 1985 and 2005) at Siemens, holding a variety of senior leadership positions. These culminated in his role as chief executive officer of Siemens Communications Inc., USA, in Boca Raton, Florida. He received his Diplom-Kaufmann in business administration from Ludwig Maximilan University.
Dr. Sobey has served as our Chief Operating Officer since April 2020. He previously served as Executive Vice President and General Manager of OEM Laser Sources (OLS) until being promoted to COO, and before that he was Executive Vice President and General Manager of Specialty Laser Systems (SLS) from April 2010 to November 2016, and Senior Vice President and General Manager of SLS from joining Coherent in July 2007 until April 2010. Prior to Coherent, Dr. Sobey spent over 20 years in the Laser and Fiber Optics Telecommunications industries, including Senior Vice President roles in Product Management at Cymer, and Global Sales at JDS Uniphase. He received his PhD in Engineering and BSc in Physics from the University of Strathclyde in Scotland.
Mr. Palatnik has served as our Executive Vice President and Chief Financial Officer since February 2016. Prior to that from August 2011 until its acquisition by Knowles Corporation in July 2015, Mr. Palatnik served as the Chief Financial Officer of Audience, Inc., a provider of intelligent voice and audio solutions for mobile devices. Prior to that from June 2001 to November 2010, Mr. Palatnik held various roles at Cadence Design Systems, Inc., an electronic design automation software company, including as its senior vice president and chief financial officer. Mr. Palatnik also serves as a member of the board of directors and chair of the audit committee of Adesto Technologies, Inc., a memory solutions semiconductor company. Mr. Palatnik received a B.S. in Industrial Engineering and Operations Research and a M.B.A. from Syracuse University.
Mr. DiMarco has served as our Executive Vice President, Chief Legal Officer and Corporate Secretary since October 2020. He previously served as General Counsel from June 2006 until his promotion to Chief Legal Officer. He has served as Corporate Secretary since February 2007. From February 2003 until May 2006, Mr. DiMarco was a member and from October 1995 until January 2003 was an associate at Wilson Sonsini Goodrich & Rosati, P.C., a law firm. Mr. DiMarco received a Bachelor’s degree from the University of California at Irvine and a Juris Doctorate degree from the Law Center at the University of Southern California. Additionally, Mr. DiMarco is a member and chair of the Nasdaq Listing and Hearing Review Council and an adjunct professor at the University of California, Hastings College of the Law.